Persistent identity
Every property receives a durable Haccretion identity connecting address, parcel, geography, characteristics, assessments, tax, systems, rooms, media and historical observations.
THE MODERN MLS
The MLS,
rebuilt as infrastructure.
Haccretion provides the shared real-estate data layer: every property, listing, brokerage, professional, user, service relationship and market event connected through persistent identity — available to people, businesses and software through one network and API.
PropertyPersistent identity
MarketListings + history
APIConnected infrastructure
PROPERTY IDENTITY•LISTINGS•BROKERAGES•AGENTS•LENDERS•OWNERS•SERVICES•TRANSACTIONS•PROVENANCE•API•PROPERTY IDENTITY•LISTINGS•BROKERAGES
THE MLS AS INFRASTRUCTURE
One connected graph for the real-estate market.
The modern MLS is not a members-only listing database pushed downstream to portals. Haccretion is structured as the underlying network that receives, resolves, preserves and distributes property, listing, brokerage, professional, user and service data across the market.
Listing events
Active, pending, sold, withdrawn and off-market states become events attached to the property instead of becoming the property record itself.
Organizations
Brokerages, teams, lenders, franchises, contractors and service companies exist as first-class identities with affiliations and property relationships.
User + professional graph
Consumers, owners and professionals connect to the same network through accounts, claims, relationships, messaging, permissions and verified identity.
Haccretion API
Haccretion products and authorized applications access normalized property, listing, professional, organization and market data through a shared API layer.
HACCRETION API
The MLS becomes a platform other software can build on.
Haccretion's API is the distribution layer for the property graph. A property request resolves the persistent property identity and can connect its market state, historical observations and related market participants without treating every source record as a separate property.
Source records and provenance remain preserved underneath the normalized Haccretion identity.
API MODEL/v1/properties/:idPROPERTY GRAPH
{ "id": "HCR-PA-19610-••••", "identity": { "status": "resolved", "canonical": true }, "property": { "address": "1821 Museum Rd, Wyomissing, PA 19610", "beds": 7, "baths": 6, "sqft": 8428 }, "market": { "status": "active", "listing_events": [...], "price_history": [...] }, "relationships": { "brokerage": [...], "professionals": [...], "services": [...] }, "provenance": [...] }
Representative Modern MLS response model. Endpoint availability and returned fields depend on the deployed Haccretion API and authorization scope.
THE CONNECTED DATA MODEL
The MLS should represent more than what is for sale.
Haccretion connects the records required to understand a property, the market around it and the people and organizations participating in that market.
DATA BOUNDARIES
Public property + market graph•Professional + organization identity•Permissioned account + transaction data•Source-level provenance
The permanent record.
The property remains in the network whether it is active, off-market or between transactions.
- Address + geospatial identity
- Parcel + jurisdiction
- Tax + assessment
- Rooms, systems + features
- Media + observations
- Canonical HCR identity
The market record.
Listings are time-bound observations and events connected back to a persistent property.
- Status + asking price
- Provider listing IDs
- Price/status history
- Market timestamps
- Listing brokerage
- Source provenance
The organization record.
Brokerages and other real-estate organizations connect directly to professionals, properties and market activity.
- Organization identity
- Branches + affiliations
- Professional roster
- Listing relationships
- Claims + verification
- Organization relationships
The people behind the market.
Agents, brokers, lenders and other professionals have durable identities beyond an individual listing.
- Professional identity
- Type + role
- Affiliations
- Claims + credentials
- Property relationships
- Public profile + reputation
The participation layer.
Consumers and owners participate in the same network while private account, messaging and authorization data remain separated from public-facing property and market records.
- Accounts + authentication
- Saved properties
- Follows + relationships
- Property claims
- Messaging
- Authorization + privacy
The property economy.
Contractors and real-estate businesses become discoverable in the context of property and market activity.
- Contractors + trades
- Inspectors + title
- Property services
- Service areas
- Organization profiles
- Property relationships
EXPLORE THE MODERN MLS
One search across the MLS graph.
A modern MLS should let a user move from a property to the brokerage, agent, lender or contractor around it — and let software resolve those same relationships through the API.
DATA PIPELINE
Many observations in. One connected MLS graph out.
The system preserves where information came from while resolving observations against Haccretion's canonical identities. Resolution can use source records, explicit Haccretion IDs, provider IDs, parcel plus jurisdiction, and exact normalized addresses. Conflicts remain ambiguous rather than being forced together by fuzzy matching.
WHAT CHANGES
The property becomes the center of the MLS.
The property becomes the center. A listing is one event in a much longer property history, and the professionals and organizations around that property become part of the same discoverable market infrastructure.
Property first
A permanent digital property identity exists before, during and after a listing.
Source aware
Normalized records do not erase source authority, raw observations or provenance.
Market connected
Brokerages, professionals, consumers and services participate in the same graph.
API native
The data layer is designed to power Haccretion and other authorized software interfaces.
History preserved
Listings and observations accumulate around the property instead of replacing it.
Network native
Search, profiles, communication and transactions connect back to real-estate identity.
THE MODERN MLS
One property graph.
The entire market connected.
Property data. Listings. Brokerages. Professionals. Users. Services. Transactions. API.